Drier



4 SheetS-Sheet I May 8, 1928.

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E. B. AYREs ET AL' I DRIER Filed Nov. 24, 1923 Abd. N

EE Iill EEFW May 8, 1928.

E. B. AYREs ET Ax.

DRIER Filed Nov. 24, 1923 4 Sheets-Sheet 5 May s, 192s. y

E. B..AYREs EVAL DRIER Filed Nov. 24, 1923 4 Sheets-Sheet 4 graf,

ments in 'a'pparatusfor drying leather.

Patented May'S, 1.9278. l

UNITED' STATES PATENT oFFIcE.

RLwooD '13.` AYREs, or MELROSE rARx, AND CHARLES s. MORRISON, or- RLRINS PARI;

PENNSYLVANIA, A-ssIeNoRs To rRocroR a SCHWARTZ, INCORPORATED, vor' PIIIL- I l ADELRRIA, PENNSYLVANIA, A coRPoRA'rIoN 0F PENNSYLVANIA Application' med N-vember Our invention.- relates to certain improve- One obJect of the invention is to construct the apparatus so that the carriers, on` which the leather is stretched, are located in chambers on each side of a' heating and circulating chamber. A further object of the invention is 'to improve vthe construction ofthe frames on 'which the carriers are mounted.

In the accompanying drawin s;

Figlxl is a transverse sectiona view on the line 1-12 Fig.. 3;

Fig. 2 1s a plan View of the drier with the outside frames removed;

Fig.3 is a side elevation of one-half of the drier; n

F ig. 4 is a lon 'tudinal sectional view on l the lme 4-4,.'F1g. 2, of onelhalf .of the drier, showing the air circulating fans-and the heating means; l 4

Fig. 5 is a. view of one of the frames .with a carrier mounted thereon; j 'Y Fig. 6 is an end View of one of the frames;

' Fig. 7 is a sectional plan view of a series of frames taken on the line 7 -7, Fig. 5 ;v Fig. 8 is a sectional perspective view v-of the lower-portion of a frame andcarrier;

- Fig. 9 is an enlarged sectionalview on the line 9-9, Fig. 1, showing a series of frames and carriers in a `drying chamber;

A:so

A, sired. This casing Fig. 10 is an enlarged sectional `plan view of part of Fig. 7;

Fig. 11 is an enlarged lvertical sectional.

.View on the line 11--11, Fig. 5;

` Figs. 12, 13 and 14 are detail views ofv one of the trunnions ,and bearing for the carrier; Y Y

Figs.`15, 16 and 17 are detail views of one of the catches for holding the. carrier in the frame;

Fig. 18 is a detached perspective View, illustrating the bumper bar;

Fig. 19 1S a view of the notched rail for holding the frames when they are withframe is a bracket 20, on which are mounted drawn 'from the drier; and

Fig. 20 is a perspective view of a modification. I

Referring to the drawings,1.isthe.casing of a drier, which ma be ofany length de' i as side walls 2 that vextend 'from the roof of the drier to the Aupper portion of the movable frames 3. 4,

'24, 1923. serial No". 676,788.'

4 are-vertical partitions that -have openings at top' and bottom for the free circulation Y 23, which are mounted in the frames 3, when the frames are located inthe drying l'chambers, and by the inner end members 6 of the frames' 3, when they are Withdrawn from the drying chambers, as shown in Fig. 1. f

In the, central chamber is a series of circulating fans 7, which are mounted on verti- 1 cal shafts 8 that'are driven from `a longitudlnal shaft 9- by suitable gearing. The

longitudinal shaft 9, and the bearings for vthe shaft 8, are located in a tunnel c, which is formed by inclined side plates 10 so as to protect them from the heated air in circulation.

Between the partitions-4, 4 and the side plates 10, 10 areheating pipes 11. These pipes are preferably located below the series of fans 7.

j Projecting from overhead rails 12. The outer ends of the rails are supported b diagonal braces 13 andA frames 14, suspen ed from the ceiling of theroom. The inner 'ends of the rails are secured to the side walls 2, as shown in Fig. 1.

Located at' the bottom of -each drying each side of the drier-are chamber are grooved rails 15, which align of the overhead rails 12. At the lower portion` of each inner end member 6 of the rollers 19 that'are arranged to travell in the grooved rails 15. n n

On the -two end members of the frame 3 are sockets 21 Vfor trunnions 22, attachedto the carrier 23, made in the form of a recr frame having braces 25-at the corners. On each carrier is secured perf.'

forated metal 26, in the present instance, to which the clamps, which are attached to the leather, are secured.

The clamps are similar to those shown Yin the patent granted to Walter M. Schwartz and Elwood B. Ayres, on May 8, 1923, No. 1,454,694.

The grooved rails 15 Iare spaced a given distance apart 'to allow sufficient space ,between the carriers for the free circulation of air past the leather, which is secured to the carriers. The grooved rails are also of such a height as to engage the lower portions of the carriers, as well as the rollers of the frame,'thereby holdin tical position, and guiding the frame. When the frames are withdrawn, the carriers arev free to be turned on their rtrunnions.-

By the, construction hereinbeore described, the sides of the drying chambers are open, but theyI are closed .by the flanges of the carriers when the frames are pushed into the drier, and are closed by the flanges 0n` .notches 31, as shown -in Fig. 4. On the socket 2l, which is secured vto the frame, is a V-'shaped pin` 32 that is arranged to enter one of the notches in the, trunnions. The function of the pin is to hold a carrier from swinging freely 'whendn a horizontal position.A In order to. lock the Carriers t0 the frames, latches 33 are provided. These, latches slide on a bracket 34 on the overhead connecting member 16.

One arm of eachlatch is longer than the otherarm, as shown in Figs. 15 and 17 so that, on raising the latches. a carrier can be turned on its pivot under the long arms' of the latches to a horizontal position,land, after a skin is secured in position, the carrier can be turned completely over, passing .the latches, and another skin can be secured tothe opposite side of the carrier.A after which the carrier is returned to its vertical position and comes in contact with the long arms of the latches and is engaged byvthem, so that it is held firmly to the frame.

Fig. 20 illustratesl a modification 0f the means for preventing the frames swinging laterally when they are withdrawn from the drier.

The overhead rails. 12l are vated above'that shown in Fig. 1, and two 0j -the carriers in a verreferably eley giving thema certain amount ofstifl'ness.

rThe overhead rails 12a are T-shaped inthis instance.

We claim:

1. The combination in a drier, of a casing having a drying chamber, 011e Sideof the chamber being entirely opengrmeans for edge, the closing members of one frame abutting` those of adjoining frames, when said frames are in either of their extreme positions.

The rails take the place of the i notched floor plate 30, and guidethe frames,

circulating heated air in the chamber; and i 2. The combination in a drier, of a casing;

longitudinal partitions therein separating the. casing into acentral heating and circulating chamber and side drying chamf bers, said drying chambers being open at the outer sides; and a series of. materialcarrying frames each frame having vertical closing members, the closing members ofone frame abutting those-of adjoining frames y when the framesare located in the chamber.

3. The combination in a drier, of a' casing enclosing a drying chamber; means for circulating heated air in Said chamber; a series of overhead outside rails and a series of inside guide rails at the bottom of the chamber; frames arranged to travel on said rails; and pivoted-carriers 0n the frames, held Jertically by the lower guide rails when t-he frames are in the drier.

4. The combination in a drier, of a casing 'enclosing a drying chamber, which isopen at one side;` means for circulating heated air in said chamber; a series of overhead outside rails at the open side of the drying chamber; a series of inside guide rails at the'bottom of the chamber; al series .ofv

frames,.each frame having a wheel at the outer'end adapted to travel onan outside overhead rail and having a roller at the lower end at the inner side adapted to travel in an inside guide vrail; a carrier pivoted to eachframe and arranged so that its lower end travels in the guide rail; a closing flange on each carrier arranged with abutting flanges of adjoining carrier-'to close the open side of the drying chamber when the frames are in the drier; and a. flange on each frame arranged to close the open .side of thedrying chamber whenv the frames are withdrawn.

5. The combination in a drier, of a drying chamber; means for circulating heated air therein; a series of framesarra-nged t0 be lis moved into and out of the drier; carriers` pivotall mounted on the frames, thetrunnions o each carrier having notches; sockets on the frames for the trunnions; and V- shapcdprojections on the sockets extending into the notches in thetrunnions when the carriers are in a horizontal position.`

f7. The combination of a drier having a drying chamber; means for circulating air in said chamber, one side of the 'chamber beingvopen; a series of frames arranged to slide into and-out of the drying chamber; and carriers, pivotally mounted on the frames, having port-ions that abut one another. and form a closure for t-he open side of the drying chamber. f

8. The combination of a drier having a drying chamber with an open side; a series of outside, overhead rails arranged side by side; a series of frames arranved to slide into and out of the drying cham er andv carried by saidyrails; carriers on the frames; means, on the carriers, for closing the dry-- ing chamber; and an abutment bar located above the sideopening of the drying chamber, said bar having spaced, depending portions extending between'the frames.

9. The-combination in.a drier, of a frame arranged to be moved into and out ofthe drier; a carrier pivotall mounted on the l frame; and a latch on t ev frame arranged Aot the' drying chamber; a, series of to engage the carrier, said latch having two arms spanning the edge of the carrier, one arm being longer than the other and acting as a stop when the carrier is turned on its pivots.

10. The combination of a drier having a drying chamber; means for circulating air in the chamber, one side of the drying chamber being open; a series of overhead, outside rails; a series of grooved rails at the floor frames, each frame having an outer, upper roller arranged to travel on an overhead rail, and having rollers-'located atl the lower, inner` end, which travel in a grooved rail; a carrier pivotallymounted on a frame; a latch for lockmg a` carrier to aframe; means, at

the trunnions of 'a carrier,l for frictionally holding a carrier in al horizontal position; means for holding a lframe laterally when withdrawn from the drier; and means for -closing the open side of the drier when the frames are in position in the, drying chamber, or are withdrawn therefrom.

11. The combination in a drier, of a; casing having a drying chamber; means for circulating heated air in said chamber, one side of said chamber being entirely open for the reception of movable material-supporting carriers; a series lof carriers arranged yside by side and having vertical closing members atthe front end so tha-t when-the carriers are Within the drier the opening will be closed by the closing members; and means for supporting theV carriersA at their outer ends when withdrawn, said supporting means allowing the carriers to' be turned from a vertical to a substantially horizontal position, to allow the dried material to be removed-'from the'carriers and other material secured thereto; Y

12. The combination in a drier, of acasing uhaving a drying chamber; means for circulating heatedl air' in said chamber, one sideof said chamber being entirely open for the reception of movable material-supporting carriers; a series of carriers arranged side by side and having vertical closing *members at'each end so that When-the carriers are within the drier or drawn out to. their full extent the opening will be closed bythe closing members; and means for supf porting the carriers at their outer ends when withdrawn, sa'id supporting means allowing ,the carriers to be turned from a vertical to a substantially horizontal position, to allow the dried material tov be removed from the carriers and othermaterial secured thereto.

13. The combination in a. drier, of a casing having a drying chamber; means for circulating heated air in said chamber, one side of said chamber being entirely open; a. series of upper and lower guide rails Within the chamber; a series of carriers arranged to be guided by the upper and lower guide rails, each carrier having avertical iUU closing member at each end, the closing` f member of one carrier abutting that of an adjoining carrier; and means on the outside of the drier for supporting each carrier,

said supporting means being arranged so t that the carrier can be turned from a vertical to a substantiallyhorizontal position,

to allow the dried material to be removed,

from the carrier and other material secured i thereto. u v

14. The combination in a drier, of acasing having a drying chamber; means for circulating heated air in said chamber, one

'side of said chamber being entirely open;

and afseries of carriers vertically arrangedY side by side within the chamber, saidc'ar-r riers having Vertical closing members at each end, the closing member of one carrier abutting that of \an adjoining carrier, so that` when a carrier is within'the drying chamber or drawn out to its full extent the opening -will be closed by the closing member, the closing members at the front of the 'drier having inturned flanges, and the closing members at the rear of the drier having out-turned flanges, said flanges being bent beyond the right angle so 'as to form a tapered guide for the carriers when they.k

` ing having aA drying chamber; meansrfor circulating heated air in said chamber, one

vside of said chamber having an extended opening; and a Series of carriers mounted in the opening, each carrier having a vert' cal closing member at the front end, the

closing member of one carrier abutting 10 those of other carriers, said closing members having inturned anges, the Hanges being bent past the right angle so that the flanges of one carrier will act as beveled guides for the carrier between them.

ELWOOD B. AYRES. CHARLES S. MORRISON. 

